Pedal-controlled mixing faucet



v w. MEIER.

I PEDAL CONTROLLED MIXING FAUCET. v APPLlCATiON man 1uLY2,192o. v1,402,632. Patented Jan. 3, 1922.-

' I ZSHEETS-SHEET 1.

, INVENTOR WITNESSES mLL/fl 7 3 an: improvement over the devie'efif orWhIOh F t A further Objectlof thisinvention "is to providea mixing'faucet whi h, is provided I V T5azziwhomamymem i I said meansibeingconti oliedby afootpedal so that the zvvater issues from the I faucet{at I 4 a dev ice of ;thefc1ass described iii 'vvhieh the a '7 2 5 v bya "foot" operating device, so that I the opj erators hands are timefoiotlieppurposesL 2 Be it known that I, {WILIJAMK a citizen of theUiiitedStates,-iand a resident of thecitviof New York, boroughofiManinvented" =anew Land 1 Improved. Pedal-Con tfOHedMiXing Fauceh ofwhich the follow; ing is agfulh clear, and exaetfdescriptioni i Thisinvention? relatesjto -1iquid mixin means; and: has {reference moreparticularly the d e'sired temperature. a

. a This appli cati ii i furtheif relates to is application was filedlbyme Qctober 25,1819, Serial Number 333151; andi's'falsoi an 1111-provement over the device sh'ovvh iu'application filed J "19, i919,Serial: Number yA n object of this invhtioh isto provide flow andtemperature of the water issuing from vthe faueetean'beaeeuratelyycontrolledi Another object of thi'sinventioniis'ltoprovidea mixing faucet WhichiI1 ay he quickly disassembled so; thatrepairs can be niade with valves which may be: adjusted When necessarydue'itowear. Reference is to be had to the accompany ingdrawin gsforming a part off'this sp'eci'fi cation; in'which it is understood thatthe drawings'killustrate onlyfone' {of thei FigureB is a sectiohal viewthrough-the Figure ;1 1s a; sectional e1evati0ii lof the of Figure 2,ith= parts broken away to disclose the-eoustmictionp 1 7 "Figure 2'is-another elevationoftheinik elose the construction.

ing faucet With-{darts broken: dismixinglfaucet on the line 3 3 ;ofEigu're 1.- i ef e' fl fec p n g aw by numerals; IOLin'dicatesa mixingchamber to reeelve a screwyeap"12 WhiChiS provided of ap '12 and oneefid'of PIVOtGd to said barf23i Iii order to resistgthis faction, afooilsp g3 slprev d dv nth pi flwflie j the pedal 28 i'nqrmallfvfheidanoblique its'new p'ositionv a 4 1 air of outstandinglugseOis formeddiametrically oppositeioueach side ofizthey inside surfaeeiofthejchambef lglO adjacent 3 V110 suspended betweenflone' pair qf lugsAOhy x means "of a-pin42whi1e a cam block '43 is i Q Patented Jame, 192 a;

is 5 posltioned co-axial I assesapinifi, sald fpin" engag ng a; slot An-1 arm 19 is formed-onthe;

the lever 1 8i is angular, in} "cios's vided (clutch laterally extending1:1 pedal "supportf2l5 is Wa'rdly extending 'lugs 26 through which low"31111 21 preferablyfrect section isypivOtedtqfth endTof;the lever 18 gI Phyi a pin f22,fa'11d' said h adapted to" slidahly receivejia bareaproeeth 241011 one edgeJfAj u *s11dab1y engages a rod 14 so thatsaid rod .7v v with the ehamberllO. he upper endiofthe rod 14 is formed into i 1a{for-1515 through which. i

v T60- hattan; county andState of New vYork, have transfverselyupasses apin 27. A pedal s 1 provided vvith downwardly extending legs 29vvhi'charepivotallyiheuuted'onthe p n 27,;andapaw130 is al o pivoted "onsaid a V 111527, the upperend extending through an jopeningfil inthearm*21 solasto engage 1 the' teeth 24; @The lower endof thebar 23 ispivoted to a 31mg 1320mm chamber. 10, i

means of apin 33.,

annular ,shoulder iil 1is7securedt0 the H lower uend;oftherod legsaidshoulderfserv I xing as -a seat "for one endofja' coil spliing 35, the'otherend ofwhich rests} on a' seat 36 formed ontheifnsideofthe base111; A I a t 3 s cured in-theseat36 extending ooaxially thi'ou ghdthesprihg 35, and into v a i t' ti a tubularFrecess 38 formed in the lovve,eIid

the lever; 18-: will I be moved about its "pivot I 20,t hus sliding the.armQl upwardlyo f the positioufas shown in? Figure 1 2, thus pressingthe awl-30;i1iwa d11y against the teeth] dowiivv ardly tothedesiredfpoint, when? oil i l releasing thepedal28,ithepaiv1 30.engages the teeth 2,thusmaintaining the rodlji in the {cap 12mm; jcam'block'el -is pivotally similarly suspended between the other pair oflugs 40 by meansof a pin 44. Gam slots are formed in eachfof theblocks41 and 43, the block 41 being provided with acam slot '45 which issubstantially arcuate in shape,

while the block 43 is provided with a cam slot 46 which has asubstantially vertlcal I straight section 47, an upper arcuatesection48, and a lower arcuate section 49, the sections 48 and 49 being turnedin opposite directions. A collar 50 is secured to the rod 14 by a pin51,- and said collar is providedwith diametrically opposite outstandingflanges 52. A laterally extending pin 58 issecured tothe end of one ofthe flanges 52 so as toiengage-the cam-slot 45, and a e laterallyextending pin 54 is secured to' the end of the other flange 52 so a .toengage the f cam slot46. The'pins 53 and 54 serve to move the camblocks41 and43 about their,

pivotswhen l' 4 is reciprocatedverti- 3 p dame. r

An inlet port-55 18 provided in the wall of the chamber 10 adjacentthecam block' 41 and aninlet port 56 is formed in the/wall of said chamber10 diametrically opposite the port 55 and adjacent the cam block 43.-

Each of the ports 55 and 56 has a threaded portiong57 to whichis securedwater pipes 58 and 59 which'may be curved, straight, or provided withunions 6O connecting said pipe to service pipes 61 passing through 'thefloor 62. 'Thepipe 58 may supply cold water and-the pipe 59 hot water orvice versa. A valve stem 63 is pivoted at one end to the lower end ofthe-block-41 by means of vpin 64, and 'a valve stem 65 is" pivoted tothe lower end ofthe cam'block gage a valve seat 70. formed in each oftheports 55 and 56when the valves'are in a closed position. The washers arepreferably made of a soft material such as rubber.

; and are held; in place, by a semi-spherical metal washer 71 secured inplace by a nut 7 2; The contact surface 73' of eachof thewashv ers 69and 69 with the' valve seats 70 is preferably semi-spherical in shape.so that asthevalve washers become worn, they may be adjusted bytightening the nuts 7 2 so that the surfaces 73 are flattened out andapproach" their respective valve seats more '9 gaged from the teeth 24,the rod 14 will be closely. .An outlet" ort 74 is provided in V thechamber 10 to a low the escape of, the mlxed water at the temperaturedesiredm -In operation when the pawl 30 is disenmo e @Xi b t rr s 3 tits pper:

most position in which both of the valve washers 69 and 69,, will beseated ontheir respective valve seats so that no water will flow intothe chamber 10 through the pipes 58 and 59. As the rod 14 is slowlymoved downwardly by depressing the pedal 28, the

pin 54 will first loosen but'not" unseat the valve Washer 69,, while thepin 53 will unseat the valve washer 69 due tothe sharp curvature of thecam slot 45. 7 As the downwardly motion of the rod 14 is continued, thepin 54 willtravel in the straight section 47 of the cam slot 46, whilethe valve washer69. is

fully opened, and upon further downward f movement of'the rod 14, thevalve washer 69 will slowly close while the valve washer 69, willslowlyopen and at the lowest point of the rod, the washer 69 will beclosed while thewasher 69 'wil1 be open. Thus a thorough mixing of ,hotand cold water from the pipes 58 and 59 occur in the chamber 10 and themixed Water of the desired temperature will flow out of the pipe 73.This faucet is especially useful for dentistsand'others' who, whileworking with their hands may desire to control the flow and temperatureofthe water without the necessity of interrupting the work in hand.

I would "statein conclusion that while the illustrated exampleconstitutes a practical embodimentof-my invention, I do notlimit myselfstrictly to the mechanical details vherein illustrated, since manifestlythe'same can be considerably varied without departure from the spirit ofthe invention as defined in the appended claims. Having thus describedmy' invention, I claim as new'and desire to secureby Letters Patent:

1. A faucet'for mixing liquids-which comprises a mixing chamber, aplurality of.

valves disposed in "said chamber and'controlling the admission of liquidto and exhaust from I the chamber, a "plurality of pivoted plates, aconnection between each pivoted plate and a valve, a sliding actuatingcontrol rod, a collar on said rod having projecting lugs, a pin on the.end ofea'ch lug, each of said plates'having 'a curved cam slot-adaptedto receive one of said'pins whereby the'm'ove ment of the rod willactuate the plates to operate the valve, and a stud projecting from thebottom of thecasing'in-line with the V control'rod, said rod havingabore adapted to receive said stud wherebythe movement of the controlrod is reinforced and id d by said'stud. j i

2. A faucet for mixing liquids, which comprises a mixing chamber, aplurality of valvesdisposed in said chamber and control-- ling theadmission of liquid to and exhaust from the chamber, a 'pluralityfofpivoted plates, a connection between each pivoted plate and a valve,aslidingactuating. control rod, a collar on said rod-having projectingbottom of the casing line With the control rod, said rod haying aboreadaptedltore ceive said stud whereby themovement of the control rod isreinforced and guided by said I I stud, an'annnlar shoulder on said rod,and 1'0 resilient spring under compresslon between the shoiilder and thebase of the chamber tending normally to hold the rod inan ele vatedposition in which the valves are closed.

WILLIAM MEIER. I

